Lets play fair JASO is not just wet clutch oil "click:
https://www.oilspecifications.org/jaso.php Many types of JASO. BRP sells many types of oil including the JASO MA2.
True, JASO rated oils are not JUST wet clutch oils. JASO MB rated oils do have friction modifiers. I am not aware of a BRP MB rated oil. But there may be.
However, JASO MA rated lubricants are PRIMARILY designed around wet clutch applications. I am not saying that a JASO rated oil is not going to work well in a non-wet clutch machine. Obviously, they work just fine. My point is that not only is the JASO MA rating not necessary with the Ryker. But you may be paying for something that is not necessary. And that a less expensive oil (Apples to Apples) might be a better choice. It costs more to make a JASO MA rated oil with features that the Ryker does not need. While at the same time, not including features, like friction modifiers, that will benefit the Ryker.
It is interesting that, within the document you reference, there is this statement.
"Modern passenger car engine oils contain more and more friction modifiers. While this is a good thing for those segments (reduces wear and fuel consumption) it's bad for motorcycles. At least for those motorcycles which use engine oil to lubricate their transmission and wet clutch. Most four-stroke motorcycles with wet clutches need a JASO MA oil. JASO MA Rated Lubricants = Japanese standard for special oil which can be used in 4-stroke motorcycle engine with one oil system for engine, gearbox and wet clutch system. Fluid is non-friction modified." (Highlighting of pertinent sections done by me).
So, in other words. JASO MA rated oils have a higher friction ratio than comparable Friction Modified oils. A friction modified oil will provide LESS FRICTION than a JASO MA rated oil. Less friction means less wear and better fuel mileage. How much is another discussion.
I'm not saying that you should not use the recommended JASO MA rated BRP product. By all means! If that's what you choose to do, I fully support that decision. It's your ride! Just discussing options here.
Based on the information I have. I am going to go with a friction modified, fully synthetic Amsoil specifically designed and optimized for engine only applications. Not only is it less expensive than a comparable JASO MA rated oil. I believe, based on the facts, that it will be a superior lubricant for the Ryker.